Nuclear uncertainties in the spin-dependent structure functions for direct dark matter detection

Cerdeño, David G.; Fornasa, Mattia; Huh, Jin Hoe; Peiró, Miguel

doi:10.1103/physrevd.87.023512

Cited by 32 publications

(52 citation statements)

References 122 publications

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“…Astrophysical uncertainties have been included as in Ref. [37]. Unless otherwise stated, all the scans in this work include both astrophysical and nuclear uncertainties.…”

Section: Determination Of Wimp Properties From Direct Detectionmentioning

confidence: 99%

“…[46,47]. Similarly, uncertainties in the SD structure functions can lead to a mis-reconstruction of the WIMP mass and SD scattering cross section [37].…”

Section: Determination Of Wimp Properties From Direct Detectionmentioning

confidence: 99%

“…In doing so we take into account all known sources of uncertainties, including those in the astrophysical parameters describing the DM halo, but also considering uncertainties in the nuclear form factors along the lines of our previous analysis in Ref. [37]. We follow an approach based on Bayesian statistics that allows us to incorporate these uncertainties in a consistent way, thereby quantifying their effect.…”

Section: Introductionmentioning

confidence: 99%

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Complementarity of dark matter direct detection: the role of bolometric targets

Cerdeño¹,

Cuesta²,

Fornasa³

et al. 2013

J. Cosmol. Astropart. Phys.

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We study how the combined observation of dark matter in various direct detection experiments can be used to determine the phenomenological properties of WIMP dark matter: mass, spin-dependent (SD) and spin-independent (SI) scattering cross section off nucleons. A convenient choice of target materials, including nuclei that couple to dark matter particles through a significantly different ratio of SD vs SI interactions, could break the degeneracies in the determination of those parameters that a single experiment cannot discriminate. In this work we investigate different targets that can be used as scintillating bolometers and could provide complementary information to germanium and xenon detectors. We observe that Al 2 O 3 and LiF bolometers could allow a good reconstruction of the DM properties over regions of the parameter space with a SD scattering cross section as small as 10 −5 pb and a SI cross section as small as 5 × 10 −10 pb for a 50 GeV WIMP. In the case of a CaWO 4 bolometer the area in which full complementarity is obtained is smaller but we show that it can be used to determine the WIMP mass and its SI cross section. For each target we study the required exposure and background.a MultiDark Scholar b MultiDark Fellow

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“…Astrophysical uncertainties have been included as in Ref. [37]. Unless otherwise stated, all the scans in this work include both astrophysical and nuclear uncertainties.…”

Section: Determination Of Wimp Properties From Direct Detectionmentioning

confidence: 99%

“…[46,47]. Similarly, uncertainties in the SD structure functions can lead to a mis-reconstruction of the WIMP mass and SD scattering cross section [37].…”

Section: Determination Of Wimp Properties From Direct Detectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Complementarity of dark matter direct detection: the role of bolometric targets

Cerdeño¹,

Cuesta²,

Fornasa³

et al. 2013

J. Cosmol. Astropart. Phys.

View full text Add to dashboard Cite

show abstract

“…This shows that the uncertainties in the structure factors are modest, so that they should not limit the extraction of dark matter information from direct detection experiments (see also the conclusions of Ref. [28]). …”

Section: A Comparison For Spin-dependent Wimp Scatteringmentioning

confidence: 94%

Nuclear structure aspects of spin-independent WIMP scattering off xenon

Vietze¹,

Klos²,

Menéndez³

et al. 2015

Phys. Rev. D

104

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We study the structure factors for spin-independent WIMP scattering off xenon based on state-ofthe-art large-scale shell-model calculations, which are shown to yield a good spectroscopic description of all experimentally relevant isotopes. Our results are based on the leading scalar one-body currents only. At this level and for the momentum transfers relevant to direct dark matter detection, the structure factors are in very good agreement with the phenomenological Helm form factors used to give experimental limits for WIMP-nucleon cross sections. In contrast to spin-dependent WIMP scattering, the spin-independent channel, at the one-body level, is less sensitive to nuclear structure details. In addition, we explicitly show that the structure factors for inelastic scattering are suppressed by ∼ 10 −4 compared to the coherent elastic scattering response. This implies that the detection of inelastic scattering will be able to discriminate clearly between spin-independent and spin-dependent scattering. Finally, we provide fits for all calculated structure factors.

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“…As pointed out in ref. [69] the effect of the form factors can also induce important differences in the expected number of events. In this work we use the Helm factor for the SI component and the SD structure functions given in ref.…”

Section: Jhep04(2015)175mentioning

confidence: 99%

Isospin violating dark matter in Stückelberg portal scenarios

Lozano

Peiró

Soler

2015

J. High Energ. Phys.

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Hidden sector scenarios in which dark matter (DM) interacts with the Standard Model matter fields through the exchange of massive Z bosons are well motivated by certain string theory constructions. In this work, we thoroughly study the phenomenological aspects of such scenarios and find that they present a clear and testable consequence for direct DM searches. We show that such string motivated Stückelberg portals naturally lead to isospin violating interactions of DM particles with nuclei. We find that the relations between the DM coupling to neutrons and protons for both, spin-independent (f n /f p ) and spin-dependent (a n /a p ) interactions, are very flexible depending on the charges of the quarks under the extra U(1) gauge groups. We show that within this construction these ratios are generically different from ±1 (i.e. different couplings to protons and neutrons) leading to a potentially measurable distinction from other popular portals. Finally, we incorporate bounds from searches for dijet and dilepton resonances at the LHC as well as LUX bounds on the elastic scattering of DM off nucleons to determine the experimentally allowed values of f n /f p and a n /a p .

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Nuclear uncertainties in the spin-dependent structure functions for direct dark matter detection

Cited by 32 publications

References 122 publications

Complementarity of dark matter direct detection: the role of bolometric targets

Complementarity of dark matter direct detection: the role of bolometric targets

Nuclear structure aspects of spin-independent WIMP scattering off xenon

Isospin violating dark matter in Stückelberg portal scenarios

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